Physics [NSTSE (National Science Talent Search Exam- Unified Council) Class 9]: Questions 31 - 36 of 285

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Question number: 31

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Question

MCQ▾

The earth attracts a body of mass on its surface with a force:

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 32

Physics
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Question

MCQ▾

A child kicks a ball along x – direction such that ball starts moving with velocity of . If the velocity of the ball decreases at the rate of , the time taken by the ball to be stationary is –

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 33

Physics
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Question

MCQ▾

An particle moves along a circular path of radius with a constant speed. If it take to move from a point on the path to the diametrically opposite point, then the distance covered , speed , displacement respectively are:

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 34

Physics
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Question

MCQ▾

A car has a value of . It may be the –

Choices

Choice (4)Response

a.

Acceleration of the car

b.

Speed of the car

c.

Momentum of the car

d.

Force on the car

Question number: 35

Physics
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Question

MCQ▾

A car increase its speed from to with constant acceleration . So, time taken to change speed is –

Choices

Choice (4)Response

a.

b.

c.

d.

Question number: 36

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Question

MCQ▾

If a boy put a book on his head and he is climbing up a ladder, then work done by the boy on the book is:

Choices

Choice (4)Response

a.

b.

c.

d.